-1105

Appears in sequences

• Spontaneous magnetization coefficients for square lattice spin 2 Ising model.at n=40A010103
• sech(cos(x)*arctan(x))=1-1/2!*x^2+25/4!*x^4-1105/6!*x^6+91313/8!*x^8...at n=3A012508
• Determinant of rank n matrix of 1..n^2 filled successively along antidiagonals.at n=46A069480
• Real part of Gaussian amicable numbers in order of increasing magnitude. See A102925 for the imaginary part.at n=0A102924
• a(n) = a(n-1) - 2*a(n-2) - 3*a(n-3) - ... - (n-1)*a(1), with a(1) = a(2) = 1, a(3) = -1.at n=11A106540
• Numerators in expansion of (1-x)^(5/2).at n=12A161202
• Alternating sum of 9-gonal (or nonagonal) numbers.at n=25A266086
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 395", based on the 5-celled von Neumann neighborhood.at n=23A271688
• Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = 5/4.at n=25A279677
• Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of e.g.f. exp(k*(1 - exp(x))).at n=72A292861
• Expansion of 1/(1 + Sum_{k>=1} k^3 * x^k).at n=7A316088
• Triangle read by rows. T(n, k) = BellPolynomial(n, -k).at n=26A350263